[Campbell Biology P.1207] Based on the provided text and Figure 51.26, which statement regard... | Practice Question

Based on the provided text and Figure 51.26, which statement regarding the coefficient of relatedness r and kin selection is INCORRECT?

  • A: The coefficient of relatedness (r) between full siblings is 0.5.
  • B: The coefficient of relatedness between an aunt and her niece is 0.25.
  • C: Kin selection is favored when the rB term in Hamilton's inequality decreases due to increased hereditary distance.
  • D: The coefficient of relatedness of an individual to a full (nontwin) sibling is equivalent to that with either parent, both being 0.5.
  • E: The red band in Figure 51.26 represents a particular allele inherited from Parent A.

Explanation

The text states that 'Kin selection weakens with hereditary distance.' This implies that as hereditary distance increases, the rB term decreases, making it less likely for kin selection to favor the altruistic act, not more. Therefore, the statement 'Kin selection is favored when the rB term in Hamilton's inequality decreases due to increased hereditary distance' is incorrect.